publisher: Penguin Classics publish date: January 26th 1978
format: paperback pages: 202
language: English
ISBN:
0140441611 (9780140441611)
publisher: Heinemann Educational Publishers publish date: April 24th 1969
format: hardcover pages: 142
ISBN:
0435121251 (9780435121259)
publisher: Penguin publish date: 1955
format: paperback pages: 222
language: English